Ok so

Each character who is in the party would swap with their “equal”

So kris and Susie would swap (kris would be like the class prankster and Susie would just be chapter one Susie but like not a asshole but more of a jerk if that makes sense)

And noelle and ralsei would swap (never seen someone do this but it works really well when you think about it)

(also berdly and lancer swap)

But that’s not important

The main thing is the chapters

So the idea is that the whole chapter theme would change but like still something you would find in the room like let’s say rouxls and king swap then rouxls would be a king piece that’s highly paranoid but still the same rouxls and have king be a rook who’s like a General who makes all the commands with rouxls just kinda being the mascot (think of buggy from one piece) who uses random things to attack party.

So the idea is to have theme of the chapter change but still feel like deltarune if that’s understandable.